<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" autocomplete="on" label-position="left">

      <div class="title-container">
        <h3 class="title">LuBase-业务端</h3>
      </div>

      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="username"
          v-model="loginForm.username"
          placeholder="账号"
          name="username"
          type="text"
          tabindex="1"
          autocomplete="on"
        />
      </el-form-item>

      <el-tooltip v-model="capsTooltip" content="Caps lock is On" placement="right" manual>
        <el-form-item prop="password">
          <span class="svg-container">
            <svg-icon icon-class="password" />
          </span>
          <el-input
            :key="passwordType"
            ref="password"
            v-model="loginForm.password"
            :type="passwordType"
            placeholder="密码"
            name="password"
            tabindex="2"
            autocomplete="on"
            @keyup.native="checkCapslock"
            @blur="capsTooltip = false"
            @keyup.enter.native="handleLogin"
          />
          <span class="show-pwd" @click="showPwd">
            <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
          </span>
        </el-form-item>
      </el-tooltip>
      <div v-if="showCode" class="captcha-container">
        <el-form-item prop="captcha">
          <span class="svg-container">
            <svg-icon icon-class="valid-code" />
          </span>
          <el-input
            ref="captcha"
            v-model="loginForm.captcha"
            class="captcha-input"
            placeholder="验证码"
            name="captcha"
            type="text"
            tabindex="3"
            maxlength="4"
            autocomplete="off"
            @keyup.enter.native="handleLogin"
          />

        </el-form-item>
        <img id="captcha" :src="imgSrc" @click="canvasClick">
      </div>

      <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">登录</el-button>
      <div v-if="showSsoLogin">
        <el-button class="thirdparty-button" type="success" @click="handleSsoAuth">
          域账号登录
        </el-button>
        <p class="sso-tip">
          {{ ssoLoginTip }}
        </p>
      </div>
    </el-form>
    <div style="text-align:center;position: fixed;bottom: 50px;width: 100%;">
      <strong style="color: #fff;font-size:14px;">Powered by <a href="https://gitee.com/lubase/lu-base" target="_blank" style="color:#33abe7;font-size:16px">LuBase</a></strong>
    </div>
  </div>
</template>

<script>
import {
  getBaseApi
} from '@/utils/index'
export default {
  name: 'Login',
  data() {
    return {
      loginForm: {
        username: 'admin',
        password: '',
        captcha: ''
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', message: '请输入账号' }],
        password: [{ required: true, trigger: 'blur', message: '请输入密码' }],
        captcha: [{ required: true, trigger: 'blur', message: '请输入验证码' }]
      },
      passwordType: 'password',
      capsTooltip: false,
      loading: false,
      redirect: undefined,
      otherQuery: {},
      showCode: false,
      imgSrc: ''
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        const query = route.query
        if (query) {
          this.redirect = query.redirect
          this.otherQuery = this.getOtherQuery(query)
        }
      },
      immediate: true
    }
  },
  created() {
    // window.addEventListener('storage', this.afterQRScan)
  },
  computed: {
    showSsoLogin: function(){
      return window?.g?.ssoUrl || ''
    },
    ssoLoginTip: function() {
      return window?.g?.loginTip || ''
    }
  },
  mounted() {
    if (this.loginForm.username === '') {
      this.$refs.username.focus()
    } else if (this.loginForm.password === '') {
      this.$refs.password.focus()
    }
  },
  destroyed() {
    // window.removeEventListener('storage', this.afterQRScan)
  },
  methods: {
    handleSsoAuth() {
      window.location.href = window.g.ssoUrl
    },
    checkCapslock(e) {
      const { key } = e
      this.capsTooltip = key && key.length === 1 && (key >= 'A' && key <= 'Z')
    },
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store.dispatch('user/login', this.loginForm)
            .then(() => {
              this.$router.push({ path: this.redirect || '/', query: this.otherQuery })
              this.loading = false
            })
            .catch((err) => {
              if (['420', '421', '422', '423'].includes(err.code)) {
                this.showCode = true
                this.$nextTick(() => {
                  this.loginForm.captcha = ''
                  this.getCaptcha()
                })
              }
              this.$message.error(err.message)
              this.loading = false
            })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
    getOtherQuery(query) {
      return Object.keys(query).reduce((acc, cur) => {
        if (cur !== 'redirect') {
          acc[cur] = query[cur]
        }
        return acc
      }, {})
    },
    getCaptcha() {
      const time = +new Date()
      this.imgSrc = getBaseApi() + '/user/verifyCode?uid=' + this.loginForm.username + '&t=' + time
      this.$nextTick(() => {
        this.$refs.captcha.focus()
      })
    },
    canvasClick() {
      this.loginForm.captcha = ''
      this.getCaptcha()
    }
    // afterQRScan() {
    //   if (e.key === 'x-admin-oauth-code') {
    //     const code = getQueryObject(e.newValue)
    //     const codeMap = {
    //       wechat: 'code',
    //       tencent: 'code'
    //     }
    //     const type = codeMap[this.auth_type]
    //     const codeName = code[type]
    //     if (codeName) {
    //       this.$store.dispatch('LoginByThirdparty', codeName).then(() => {
    //         this.$router.push({ path: this.redirect || '/' })
    //       })
    //     } else {
    //       alert('第三方登录失败')
    //     }
    //   }
    // }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */

$bg:#283443;
$light_gray:#fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;

  .captcha-container{
    display: flex;
    .el-form-item{
      flex: 1;
    }
    #captcha{
      height: 50px;
      width: 120px;
      margin-left: 20px;
      background: #fff;
      margin-bottom: 22px;
      border-radius: 5px;
      box-sizing: border-box;
      cursor: pointer;
    }
  }

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }

  .thirdparty-button {
    width: 100%;
  }

  .sso-tip{
    color: #fff;
    font-size: 14px;
  }

  @media only screen and (max-width: 470px) {
    .thirdparty-button {
      display: none;
    }
  }
}
</style>
